<i>In situ</i> synthesis of BiOCl nanosheets on three-dimensional hierarchical structures for efficient photocatalysis under visible light

Yan, Xiu-Juan; Zhao, Huamei; Li, Tengfei; Zhang, Wang; Liu, Qinglei; Yang, Yuan; Huang, Lujun; Yao, Lulu; Yao, Jiahao; Su, Huilan; Su, Yishi; Gu, Jiajun; Zhang, Di

doi:10.1039/c9nr02304f

Cited by 33 publications

(27 citation statements)

References 56 publications

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“…Compared with SS powder, the current intensities of both CdS‐NPs and BW@SS were distinctly increased, revealing enhanced the rate of generation of charge carrier over CdS derived from Cd‐based MOF. [ 53 ] Although CdS‐NPs showed a strong photocurrent response during the test, the photocurrent decreased gradually with the time because of the photocorrosion. However, the samples exhibited photocurrent instability under long‐time illumination (Figure S10, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Biomorphic CdS/Cd Photocatalyst Derived from Butterfly Wing for Efficient Hydrogen Evolution Reaction

Zhong

Liu

2022

Adv Materials Inter

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as photocatalysts for hydrogen evolution reaction (HER). [5] For instance, TiO 2 , one of widely used photocatalysts, can absorb ultraviolet light to generate electron-hole pairs in the hydrogen evolution reaction. [6] However, the wide band gap (≈3.2 eV) for TiO 2 limits the utilization of sunlight as well as its photocatalytic activity. [7] Among inorganic photocatalysts, CdS is considered as one of the prominent materials for the visible light-driven water splitting because of the efficient utilization of solar energy and narrow band gap (≈2.4 eV). [8] Even so, it is generally difficult to maintain the structure stability of the pure CdS particles under reaction conditions due to oxygen-induced photocorrosion, which leads to low photocatalytic activity and stability and limits their application. [9] Meanwhile, a large number of studies show the rapid recombination of the photogenerated electron-hole pairs inside CdS photocatalyst, leading to low charge carrier use efficiency. [10] In order to promote the transfer and effective utilization of charge carriers, some noble metals (such as Pt) are loaded on the surface of CdS and construct Schottky junction heterostructures. [11] The scarcity and high cost of noble metals restricts their large-scale application, which motivates the search for low-cost alternatives. Cd, a nonnoble metal with excellent electrical conductivity, attracts much interest in the construction of Schottky junction photocatalysts with CdS. [12] Yu et al. prepared a Schottky junction photocatalyst with CdS and Cd clusters by post-treatment technique. [10] Wand et al. developed a photocatalytic reduction method to construct a Ag 2 S/CdS/Cd system for UV-vis-NIR photocatalytic hydrogen evolution. [13] These relevant researches give an inspiration that Cd metal can act as an electron trap to accelerate the charge carriers transfer after being composited with CdS.Recently, metal-organic frameworks (MOFs), newly developed materials formed by metal clusters and organic ligands, have been attractive materials in the field of adsorption, catalysis, electrochemistry, and so on. [14,15] In particular, MOFs have potential application in the visible light-driven hydrogen production with rich active sites, highly stable structure and large specific surface area. [3,16] It is noticed that MOF templatedirected derivatives which can precisely manipulate the dispersion states of the active sites are favorable for improving the photocatalytic activity as well as stability. [17] Li et al. prepared Photocatalytic splitting of water into hydrogen has attracted growing concerns as a promising strategy for the development of clean and renewable energy sources. Fabricating novel photocatalysts with high H 2 evolution rate and good cyclic stability is extremely vital for practical applications. Herein, a novel CdS/Cd 2 SO 4 (OH) 2 composite derived from cadmium nitrate doped Cd-MOF is deposited on the surface of butterfly wings with reticular hierarchical structure for efficient hydrogen evolution reaction. The combin...

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Section: Resultsmentioning

confidence: 99%

Biomorphic CdS/Cd Photocatalyst Derived from Butterfly Wing for Efficient Hydrogen Evolution Reaction

Zhong

Liu

2022

Adv Materials Inter

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“…The presence of metal is also beneficial for ameliorating the separation and transfer efficiency of charge carriers in BiOCl. 26,27,47,73 Among various metal/BiOCl composites, Ag with a strong LSPR effect, 26,73 Au with an obvious LSPR effect and excellent oxidation resistance ability, non-noble metal Bi that is cheap, has low effective mass, good transport properties, high carrier activity, and LSPR effect have become popular candidates for the combination with BiOCl in recent years. 47,73,80,81,85 Therefore, Ag/BiOCl, Au/BiOCl, and Bi/BiOCl photocatalysts will mainly be discussed in the next sections.…”

Section: Categories Of Biocl-based Photocatalystsmentioning

confidence: 99%

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

Yang

Sun

Cui

et al. 2021

Crystal Growth & Design

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The construction and regulation of heterogeneous interfaces are beneficial to improve solar light harvesting and photocharge separation of hybrid BiOCl-based photocatalysts, which are attributed to the synergistic effects that originate from the integrated interaction between disparate components. With the rapid development of synthetic technologies, hybrid BiOCl-based micro-/nanostructures with diversified components, morphologies, and sizes have been well prepared. Moreover, hybrid BiOCl-based photocatalysts have presented a promising potential for various photocatalytic applications, such as organic pollutant degradation, hydrogen production, NO removal, CO2 reduction, heavy metal ion detection, disinfection, nitrogen fixation, and alcohol oxidation. Previously, several review articles have mainly summarized the advances made in synthetic methods, morphological control, modification strategies, and applications of the bare BiOCl micro-/nanostructures. However, a comprehensive overview based on the type of species and the corresponding correlations between microstructures, performances, as well as photocatalytic mechanisms has been less reported for hybrid BiOCl-based photocatalysts so far. Therefore, a comprehensive understanding of the basic theory and research progress of hybrid BiOCl-based photocatalysts is imperative. This review aims to provide an overview of the important advances made in eight types of hybrid BiOCl-based photocatalysts, including metal/BiOCl, metal oxide/BiOCl, metal sulfide/BiOCl, BiOX (X = Cl, Br, I)/BiOCl, AgX (X = Cl, Br, I)/BiOCl, organics/BiOCl, carbon/BiOCl, and other BiOCl-based multicomponents. In each classification, the synthetic methods, modification strategies, relationships between interfacial microstructures, and enhanced performances are discussed based on some typical examples. Additionally, some scientific issues and potential directions are also given. Hopefully, this review paper will provide a useful reference for researchers currently focusing on exploring new BiOCl-based photocatalysts.

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“…Numerous biomaterials (e.g., eggshells, [ 174 ] rose petals, [ 175 ] scallion roots, [ 176 ] Typha angustifolia, [ 177 ] caltrop stems, [ 178 ] bacteria, [ 179 ] and insect wings [ 180 ] ) possessing sophisticated 3D hierarchical structures are also utilized to prepare complex and delicate 3D architectures not accessible from the conventional synthesis procedure. Biomaterials as sacrificial templates are usually inexpensive, renewable, and easy to remove.…”

Section: Hierarchical 3d Architecture From 2d Nssmentioning

confidence: 99%

“…Biomaterials as sacrificial templates are usually inexpensive, renewable, and easy to remove. Examples include the assembly of BiOCl NSs into 3D hierarchical structure with butterfly wing, [ 180 ] Co 3 O 4 NSs into 3D hierarchical structure with China rose petal, [ 175 ] and Bi 2 O 3 NSs into 3D hierarchical structure with scallion roots. [ 176 ] Liu and coworkers used China rose petal as the biotemplate to prepare Co 3 O 4 NSs that inherited the special 2D sheet‐like morphology and sophisticated surface pattern from the original petal ( Figure ).…”

Section: Hierarchical 3d Architecture From 2d Nssmentioning

confidence: 99%

Two‐Dimensional Transition Metal Oxides and Chalcogenides for Advanced Photocatalysis: Progress, Challenges, and Opportunities

et al. 2020

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Sunlight‐driven catalytic reactions are appealing for resolving energy and environmental problems. Transition metal oxides (TMOs) and chalcogenides (TMCs) comprise one of the most popular categories of photocatalysts, thanks to their high stability, low cost, Earth abundance, and outstanding catalytic activity. Downsizing TMOs and TMCs to 2D materials offers additional opportunities to finely tune their surface, electronic, and catalytic properties. However, 2D TMOs and TMCs fall into a less mature field than other well‐established 2D materials. Less is known about their “form‐to‐function” relationship, and mechanisms for their synthesis await more research. Herein, the progress toward the rational design of layered and nonlayered 2D TMOs and TMCs is summarized, as well as principles to engineer their nanosheets (NSs) into 3D architectures for practical application. The formation mechanisms and crystal growth models of these 2D materials are included. The key factors that determine the electronic, surface structures, and catalytic properties of 2D TMOs and TMCs are examined in particular, which are key considerations in tuning their performance in light absorption, charge carrier transfer/separation, molecule capture and activation, etc. Finally, the present challenges and future research directions in this promising field are illustrated.

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In situ synthesis of BiOCl nanosheets on three-dimensional hierarchical structures for efficient photocatalysis under visible light

Abstract: Assembling two-dimensional (2D) nanomaterials into three-dimensional (3D) hierarchical structures with novel functions is challenging and has attracted considerable attention.

Cited by 33 publications

References 56 publications

Biomorphic CdS/Cd Photocatalyst Derived from Butterfly Wing for Efficient Hydrogen Evolution Reaction

Biomorphic CdS/Cd Photocatalyst Derived from Butterfly Wing for Efficient Hydrogen Evolution Reaction

Synthesis, Functional Modifications, and Diversified Applications of Hybrid BiOCl-Based Heterogeneous Photocatalysts: A Review

Two‐Dimensional Transition Metal Oxides and Chalcogenides for Advanced Photocatalysis: Progress, Challenges, and Opportunities

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